docs: def write_unchecked_hmac_data(self, offsets, data):
          # type: (Descriptor, Offsets, bytes) -> None
          """Write unchecked encrypted data to disk
          :param Descriptor self: this
          :param Offsets offsets: download offsets
          :param bytes data: hmac/encrypted data
          """
          fname = None
          with tempfile.NamedTemporaryFile(mode='wb', delete=False) as fd:
              fname = fd.name
              fd.write(data)
          unchecked = UncheckedChunk(
              data_len=len(data),
              fd_start=0,
              file_path=pathlib.Path(fname),
              temp=True,
          )
          with self._meta_lock:
              self._unchecked_chunks[offsets.chunk_num] = {
                  'ucc': unchecked,
                  'decrypted': False,
              }
          return str(unchecked.file_path)